The exterior walls of a rental apartment building need to be repainted on a regular schedule.
That's not just about keeping the building looking good — repainting is also what keeps the property's underlying value from eroding over time.
A well-maintained building also reads as more attractive to prospective tenants, so repainting doubles as a genuinely effective tool for cutting vacancy.
The part owners tend to get stuck on, though, is timing: when should the work actually happen?
Even once you accept that repainting is necessary, there's still the question of when to schedule it, how often it needs to be redone, and roughly what it will cost — and without clear answers to those questions, it's hard to make a confident call.
So in this article, we'll walk landlords who are unsure about timing through the cost, typical price range, and best season for exterior repainting.
We'll also cover what to watch out for during the work itself, so use this as a practical reference.
Why an apartment building needs exterior repainting
Some landlords may even wonder whether exterior repainting is really necessary in the first place.
But any residential building needs it, full stop.
Here's why regular repainting matters so much.
It slows down how fast the building deteriorates
One reason repainting matters is that it slows the building's overall deterioration.
A building's exterior walls are constantly exposed to rain, wind, sand, and UV rays.
UV exposure and rain in particular are simply unavoidable, and both do real damage over time.
Leave that damage unaddressed, and it can eventually work its way into the building's insulation, framing, and structural beams.
The interior condition of a building often can't be judged from the outside, so by the time a problem is noticed, exterior repainting alone may no longer be enough to fix it.
Repainting is how you hold that deterioration in check while keeping the building looking its best.
And a good-looking exterior isn't just about appearances — it protects the structure itself while also helping preserve the property's resale value.
It makes a stronger impression during viewings
What do prospective tenants actually weigh most heavily when choosing an apartment?
Most people make the call based on a combination of factors — location, floor plan, functionality, and so on.
But visual impression matters too, and the cleaner a building looks, the more people find themselves wanting to live there.
Given two buildings at the same rent, one with a shabby, worn exterior and one that looks crisp and well kept, most renters will choose the latter.
In fact, a good-looking property tends to get chosen over a competitor even when its rent is slightly higher.
A clean exterior doesn't just leave a better first impression during a viewing — it signals that the building is genuinely well cared for.
That makes prospective tenants feel like they could actually enjoy living there comfortably, which is exactly what drives up occupancy.
It heads off much bigger repair bills down the road
Exterior repainting is one of the essential maintenance tasks for any apartment building.
The paint coating protects the building from a whole range of threats, so if it isn't refreshed periodically, that protective function gradually weakens.
With a typical exterior coating, protection starts noticeably declining after roughly ten years.
Misjudging when to repaint based on looks alone risks letting real damage reach the building's structure, so this deserves real attention.
As the coating deteriorates, the paint starts peeling, and mold and moss soon follow.
Damage reaches the wall directly at that point, durability weakens, cracks form, and water starts leaking in through them.
For concrete walls specifically, spalling — where fragments crack off and fall away — is also a common failure mode.
Leaving exterior paint unaddressed for too long can lead to tenant complaints, and in some cases tenants move out entirely, citing unsanitary conditions as the reason.
A resulting leak can also expose the owner to a liability claim from an affected tenant.
Once things reach that stage, the building doesn't just need repairs — in the worst case, it may need to be rebuilt entirely.
When to schedule exterior repainting
Skip regular exterior repainting, and the long-term viability of the whole rental business can end up at risk.
If keeping a valuable asset like an apartment building looking its best matters to you, it pays to understand the right timing and start planning ahead.
Roughly every 10 to 15 years is the general rule
How often should an apartment's exterior actually be repainted?
As mentioned above, repainting is generally needed around the ten-year mark.
The exact figure depends on the type of coating used, but a service life of about ten years is typical across most paint products.
Japan's Ministry of Land, Infrastructure, Transport and Tourism also touches on this in its long-term repair planning guidelines for condominiums, which put the typical cycle for major repair work — including exterior repainting and rooftop waterproofing — at roughly twelve years.
So for an apartment building too, a repaint cycle of roughly 10 to 15 years is a reasonable target.
Pick a period with low tenant turnover
Once you know the repaint cycle, the next step is figuring out the best time within that window to schedule the work.
In practical terms, that means choosing a season when tenant turnover is naturally low.
Turnover in Japan tends to spike around spring and fall, driven by the school year starting, new employees joining companies, and seasonal job transfers.
During those stretches, large trucks and moving vehicles come and go around the building far more often than usual.
Scheduling repainting during a high-turnover period just adds to the disruption for neighbors and moving companies alike.
Prospective tenants also find it easier to commit to a unit when they can picture the finished building, so it's worth aiming to have the work wrapped up before the busiest move-in seasons begin.
The season the work happens in matters too
Which season is actually best for exterior repainting?
If cost is the only consideration, the quieter off-seasons — the rainy season in June, and winter from December through February — tend to have more open slots in a contractor's schedule and come in comparatively cheaper.
Looking at it purely from a paint-conditions standpoint, spring (April–May) and fall (September–October) are considered ideal, since the air is dry and the weather is stable.
Below is a closer look at the pros and cons of painting in each season.
Painting in spring
The advantage of spring repainting is that temperature and humidity both stay stable and rainfall is relatively light, which makes for smooth, uninterrupted work.
With less interference from rain or cold weather, the paint dries more reliably and the finish tends to come out better.
The downside is that spring is peak season, which means contractors get booked up fast and prices can rise as a result.
If you want the job finished before the rainy season starts, book your contractor two to three months ahead.
Painting in summer
Summer brings higher humidity and plenty of clear days.
Paint dries quickly in the heat, so work tends to progress fairly smoothly.
Longer daylight hours are an added plus, since they give crews more usable working time each day.
The downside is that typhoons and sudden heavy downpours can force work to stop partway through.
A stretch of bad weather can throw off the whole schedule, so it's worth keeping that possibility in mind going in.
The rainy season (roughly June)
The advantage of painting during Japan's rainy season is that it's an off-peak stretch, so booking is easier and prices tend to come in lower.
If cost is your main concern, this window is worth considering.
The trade-off is that while painting is cheaper, the high humidity of the rainy season makes it harder for paint to dry properly.
Choose the wrong contractor for this window and it can lead to defects that only show up later.
Be aware too that a long stretch of rain, which this season isn't exactly suited for, can push the schedule back.
Since paint needs to dry thoroughly to hold up, it's important to hire a contractor who genuinely manages the process with that in mind.
Painting in fall
Like spring, fall brings dry air, making it another well-suited season for repainting.
Paint dries easily, which tends to produce a better finish.
One nice side benefit is that if windows have to stay closed during the work, fall's mild temperatures make that far more bearable than it would be in summer.
Because fall is a popular repainting season, prices can climb and contractors can be harder to book.
Also worth noting: autumn rain fronts and typhoons can push the schedule back, which counts as a real downside.
Painting in winter
Winter repainting can be difficult depending on the region, and of the four seasons it's generally considered the least suited to painting work.
Outside of areas that see heavy snowfall, humidity stays low and the air is dry, which does make repainting workable.
Winter's off-peak status can help keep costs down, but be aware that once temperatures drop below 5°C, contractors typically won't be able to work at all.
In regions with heavy snow, most contractors simply won't take on exterior painting jobs from late November through early March.
Working hours are also more limited in winter, so it's worth planning for the possibility that the schedule stretches out.
Consider repainting the moment deterioration shows up
Ten years after the last paint job is the usual rule of thumb for when a repaint is due, but if visible signs of deterioration show up, it's worth considering repainting regardless of exactly how many years have passed.
Leave those signs unaddressed and the deterioration keeps progressing, sometimes to the point where major repair work becomes unavoidable.
Catching the warning signs early and acting on them promptly is what lets a building last far longer.
Here are the deterioration symptoms worth watching for.
Chalking
One of the most familiar warning signs is something called chalking.
Chalking is when running a hand across the exterior wall leaves a chalk-like powder residue on your fingers.
UV rays and rain gradually break the paint down, and as that happens the pigment inside the coating turns to powder and rises to the surface.
Once chalking appears, it means the paint's protective function has already degraded, and the wall is no longer properly shielded from rain and sunlight.
At that point, it's worth planning a repaint as soon as reasonably possible.
Cracking
Cracks are exactly what they sound like.
Minor cracks that haven't reached down to the wall's base layer are thin and shallow, and can typically be filled in by applying a thick, slightly elastic filler as an undercoat.
But a crack that's 0.3mm wide and at least 4mm deep may well have already reached the wall's base layer.
To avoid letting the building's structural strength decline further, or letting wall deterioration and corrosion spread, it's worth having a specialist contractor inspect it right away.
Peeling paint
Peeling comes from two main causes: ordinary age-related wear, or poor workmanship on the original job.
If peeling shows up shortly after a repaint job, faulty workmanship is the likely culprit.
A wall where the paint has already peeled has lost its protective function, so an early repaint is worth prioritizing.
Leave it as-is, and the exterior material underneath can start corroding, which makes a full remodel increasingly likely.
If the peeling traces back to a workmanship defect, it may well be covered under warranty.
It's worth checking with the original contractor and requesting a repaint under that warranty.
Fading
Fading actually shows up before chalking does.
Think of it as an early warning sign that the coating is starting to lose its protective ability.
Because a wall's color rarely changes all at once, fading can be genuinely hard to notice as it happens.
Taking a photo right after the paint job finishes, so there's something to compare against later, is a good habit to get into.
Rust on metal parts
Exterior walls and roofs are treated with waterproofing on the assumption they'll get wet in the rain, and the paint coating is what keeps that surface protected.
But if rainwater finds its way in through some gap and reaches the structure underneath, it leads directly to rust on any metal components used in the exterior.
Rust spreads outward, eventually eats through the metal, and if left alone can weaken the part to the point where it fails under minimal weight.
If rust has progressed significantly, it's worth consulting a specialist contractor as soon as possible.
Cracked caulking
Caulking refers to the rubber-like resin sealant used to fill the small gaps that inevitably form during construction, for the sake of the building's airtightness and waterproofing.
As caulking ages, fine cracks start to appear.
As that deterioration progresses, the caulking material shrinks, and rainwater works its way into the gap that opens up between the crack and the now-contracted sealant, weakening the waterproofing.
How should you choose the color for an apartment's exterior?
Exterior walls cover a large surface area, and the color chosen has a real effect on the overall impression the building gives off.
Here are the key points to weigh when picking a color for a repaint job.
Color choice matters for boosting the building's image too
Exterior repainting doesn't just extend the life of the building — changing the color can also give it a genuinely different look and feel.
A fresh coat improves the visual impression, and a well-chosen color can reset how the building is perceived, which can in turn help attract new tenants.
Coordinate the color with the roof and window sashes
The key to picking a color you won't regret is keeping the overall palette unified.
Aim to keep the roof, window sashes, and exterior walls within the same general color family.
Avoiding unusual color combinations, and limiting the overall palette to two or three colors, cuts down significantly on the chance of a mismatch.
Be cautious about using darker colors
Dark tones like black or navy can look stylish, but they can also come across as gloomy depending on the context.
Reactions to dark colors vary a lot from person to person, so if the goal is appealing to as broad a range of tenants as possible, think carefully before committing to a dark exterior.
Choose a color that fits the surrounding neighborhood
When repainting, choose a color that harmonizes with the buildings and streetscape nearby.
A tone similar to what's already in the area keeps the overall look balanced and doesn't hurt the building's visual appeal.
A color nobody else in the area is using will certainly stand out, but that can just as easily read as an eyesore, so a shade that respects the local streetscape is generally the safer choice.
Aim for something simple but still stylish
A building's exterior is one of the factors that shapes whether someone chooses to live there.
Even with a great location and a great unit inside, a building whose exterior just isn't to someone's taste can end up passed over entirely.
So it's worth genuinely thinking through what impression a given color will create before committing to it.
Using too many colors together tends to read as cluttered, so aim for a simple, refined color scheme.
To appeal broadly across different tenant preferences, a subtly stylish color tends to work better than anything too bold or narrow in its appeal.
How much does exterior repainting cost? Typical price ranges and what's included
Plenty of landlords want a clear sense of the cost before committing to an exterior repaint.
Next, let's break down the typical price range for repainting an apartment building's exterior.
Typical cost by category
Ask a repainting contractor for a quote and you'll get one broken down by category.
That breakdown usually includes the type and unit price of the paint, scaffolding costs, and labor.
Let's look at the typical price range for the categories that drive most of the cost: paint, scaffolding, and labor.
Paint cost
Cost varies significantly depending on which paint is used.
The most budget-friendly option, silicone-based paint, runs roughly 2,000 to 2,500 yen per square meter.
Radical-control paint runs 2,200 to 2,800 yen, fluorine-based paint 3,500 to 4,500 yen, and heat-reflective or insulating paint 3,000 to 4,500 yen.
Move up to a higher-performance photocatalytic paint and the typical range is 4,200 to 5,000 yen, while inorganic paint runs 4,000 to 5,500 yen.
Scaffolding cost
Scaffolding is essential so the crew can work safely.
The typical cost runs 700 to 1,000 yen per square meter.
The total scaffolding area scales with the building's total floor area.
As a rough guide, roughly 330 square meters of floor area needs about 100 square meters of scaffolding, 500 square meters needs about 150, and 660 square meters needs about 200.
Contractors also put up a debris net when scaffolding goes up, to keep paint and other material from drifting onto neighboring properties.
That netting typically runs 200 to 400 yen per square meter.
Labor cost
Labor cost varies depending on which repainting contractor you hire.
The number of workers involved changes from task to task, so it's worth checking ahead of time roughly how much labor each stage of the job is likely to require.
If a contractor doesn't have enough hands on-site and the job stretches out over more days, that can sometimes end up costing more than simply bringing on additional workers would have.
Keep that dynamic in mind and look closely at any quote you receive.
Scaffolding typically makes up about a fifth of the total cost
Repainting the exterior of a typical two-story apartment building covers roughly 500 square meters.
Repainting a building of that size, depending on the paint chosen, generally runs between 1 million and 3 million yen.
Add in labor, scaffolding, and other costs, and it's realistic to budget somewhere in the range of 2 million to 5 million yen overall.
That's a substantial amount of money, so choosing the right contractor carefully is essential if you want to avoid regretting the decision later.
Scaffolding tends to account for a fairly large share of that total as well.
Broken down by category, paint typically runs around 20% of the total, scaffolding around 20%, labor and construction costs around 30%, and the contractor's own margin around 30%.
Getting quotes from several contractors makes it much easier to judge whether a given estimate is reasonable, so it's worth consulting more than one company before deciding.
How to keep the cost of exterior repainting down
The cost of repainting an apartment building's exterior can add up quickly.
That's a real headache for landlords, and plenty of them look for ways to bring the cost down even a little.
It does cost money, that much is unavoidable — but there are still legitimate ways to reduce the total.
Here's how to keep the cost down.
Take advantage of subsidies and grants
National and local government subsidy and grant programs can meaningfully reduce the financial burden of an exterior repaint.
To qualify for these programs, you typically need to meet certain conditions, such as using heat-reflective or insulating paint to add an energy-efficiency benefit to the job.
The specific requirements are usually posted on the relevant municipality's website, so it's worth checking there directly.
Some programs have application deadlines, and some won't accept an application after the work is already done, so it pays to check the fine print carefully.
Choose paint with the right service life in mind
Choosing the right paint is another lever for controlling cost.
A cheaper unit price keeps the immediate cost down.
But cheaper paint typically has a shorter service life, which means the maintenance cycle shrinks too.
Even though each individual job costs less, the cost ends up higher in the long run.
Fluorine-based and inorganic paints, by contrast, cost more per unit but last much longer.
Choosing a longer-lasting paint is what actually keeps your running costs down over time.
Choose paint from a lower-cost manufacturer
Even paints with essentially the same performance characteristics are priced differently depending on the manufacturer.
Some manufacturers offer paint with comparable performance at a noticeably lower price.
Choosing paint from one of those manufacturers can meaningfully reduce the total cost.
That said, a lower price sometimes means a shorter service life, so it's essential to check that detail before committing.
Get quotes from multiple contractors
Getting quotes from several repainting contractors makes it much easier to judge what a fair price actually looks like.
Even using the identical paint, two contractors' purchase costs can differ, and that difference flows through to the labor cost as well.
Gathering multiple quotes and picking a contractor whose price isn't unreasonably high or suspiciously low is generally the safest approach.
Comparing quotes side by side can also give you leverage to negotiate a lower price.
Choose a locally based contractor
If keeping repainting costs as low as possible is the priority, working with a locally based contractor is another option worth considering.
Large national companies often offer strong after-sales support, but that typically comes bundled with a markup for the middlemen involved, which drives the price up.
A locally based contractor, by contrast, often handles the work with its own crew rather than subcontracting, so that markup mostly disappears.
That keeps the overall cost down.
Consider bundling other maintenance into the same job
Exterior repainting isn't the only maintenance an apartment building needs.
Roof repainting and balcony repairs also require scaffolding, so it's worth asking whether those can be scheduled at the same time.
Bundling every job that requires scaffolding into a single visit means the scaffolding only has to go up once.
Since putting up scaffolding is itself a real cost, consolidating it into one job is a straightforward way to cut expenses.
Complaints neighbors commonly raise during exterior repainting
Exterior repainting work often draws complaints from neighboring residents.
To keep those complaints from happening in the first place, it helps to know what kinds of problems tend to come up and how to head them off.
Here's a rundown of the most common complaints.
Complaints about the scaffolding
Putting up scaffolding involves assembling temporary steel piping, and the process of steel pieces knocking together is loud almost by definition.
It can't really be avoided, but the clanging of metal on metal is genuinely unpleasant to hear.
For tenants and neighbors alike, that noise is a genuine source of stress.
A careless contractor that doesn't think about the people living nearby can turn this into a flood of complaints.
Avoiding that starts with choosing a contractor that's genuinely attentive and considerate toward tenants and neighboring residents.
Complaints about pressure washing
Before painting starts, the exterior gets cleaned of dirt and moss.
That cleaning is typically done with a pressure washer.
Pressure washing can send dirty spray flying in every direction, which risks staining a neighbor's laundry, car, or other belongings.
A reputable contractor uses a debris net to prevent exactly that kind of problem.
If a debris net isn't included in the quote you're given, there's a real chance it won't be installed at all.
Confirming the use of a debris net up front is one of the best ways to avoid complaints once the job is already underway.
Complaints about smell
Many paints used for exterior work contain thinner as a solvent.
Water-based paints don't contain thinner, but oil-based paints do, and that comes with a stronger odor.
As a result, apartment repainting jobs can draw complaints about smell.
Prolonged exposure to thinner fumes can cause headaches, dizziness, and other symptoms, so it's worth checking exactly what kind of paint is being used, both for tenants' sake and for neighbors'.
This calls for extra care in particular for family-oriented buildings with pregnant residents or small children, and for pet-friendly buildings.
Other assorted complaints
There are plenty of other complaints that can come up during an exterior repaint.
Workers smoking on-site or leaving trash behind when they go home
Loud laughter or chatter while work is underway
A balcony left dirty after the job
Items left on a balcony being moved and not put back
Workers entering a balcony without permission
Work starting too early or running too late, disturbing sleep
Complaints like these come up fairly often.
Depending on which contractor is hired, some simply don't take tenants and neighbors into consideration.
That's why landlords need to vet the contractor carefully themselves and only hire one they genuinely trust.
Choosing based on price alone is a mistake you'll likely come to regret.
How to prevent complaints during exterior repainting
Exterior repainting is essential maintenance for keeping an apartment building in business over the long run.
Naturally, no landlord wants complaints piling up while the work is underway.
Understanding the right countermeasures ahead of time is the key to keeping complaints from happening at all.
Choose a contractor with a solid track record
Choosing a contractor you can genuinely trust lowers the odds of complaints considerably.
It's worth favoring contractors who publish their track record on their website.
It's also worth checking whether they hold a proper construction business license and painting-work license, and whether they employ licensed painting technicians.
A contractor whose website spells all of this out clearly is far more likely to carry out work that keeps complaints to a minimum.
Read the construction contract carefully
Reading through the construction contract carefully matters too.
Check the details closely — the project name, timeline, contract date, contract amount, payment terms, and warranty coverage.
If anything looks off or incomplete, raise it before the work actually begins.
Checking everything thoroughly up front is what prevents disputes and complaints during and after the job.
Greet tenants and neighbors ahead of time
Before work begins, don't forget to personally greet the building's tenants and the surrounding neighbors.
The standard timing for these visits is somewhere between one week and three days before the scaffolding goes up.
Let them know the project timeline, the scope of work, and how to reach the contractor.
A contractor that handles these greetings properly is also far more likely to resolve any trouble smoothly if it does come up.
Visit the site every two or three days
As the landlord, make a habit of visiting the site roughly every two to three days.
When the owner shows up in person, it tends to keep the crew a bit more on their toes, which cuts down on sloppy mistakes.
It also makes it easier to hear directly from tenants and neighbors about anything that's bothering them.
If visiting in person isn't practical, ask the contractor to send photos and a daily work log instead.
Before repainting an apartment's exterior: notifying tenants
If you're going ahead with an exterior repaint, notifying tenants beforehand is essential.
Finally, let's cover why that notice matters, when to send it, and how.
Why is notice even necessary?
If exterior work suddenly starts one day with no warning, some tenants are bound to be upset that nobody told them.
Once work begins, it's not just the noise — tenants also lose the ability to hang laundry out on the balcony.
That kind of disruption makes daily life feel genuinely inconvenient.
The cost of exterior repainting is often funded, at least partly, out of the common-area fees tenants pay every month alongside their rent.
While the landlord typically covers part of the cost, it's worth remembering that tenants' money is often part of that funding too.
To keep things comfortable for tenants, it's worth giving them advance notice whenever exterior repainting is planned.
Knowing the start and end dates in advance lets tenants plan around the disruption themselves.
When to send the notice
The general rule is to notify tenants at least ten days before work begins.
A last-minute notice doesn't give tenants enough time to prepare, which can itself become a source of complaints.
Ten days also allows enough of a buffer for the notice to actually reach every tenant, since it can take time for everyone to see it.
Some tenants are more bothered by construction noise than others, so notifying early is genuinely worthwhile for keeping complaints to a minimum.
How to send the notice
Typical ways to notify tenants about exterior repainting include posting on the building's bulletin board, circulating a notice, or visiting each unit directly.
The most common approach is posting on a bulletin board or circulating a written notice.
But some tenants never check the bulletin board or a circulated notice, so going door to door as a backup — just to be safe — is the most reliable way to make sure everyone actually gets the message.
Any tenant who's missed can easily become a source of complaints or friction later.
To avoid that, it's worth using more than one notification method to make sure the message reaches every single tenant.
In summary
Keeping an apartment building looking its best requires regular maintenance.
Exterior repainting is one of the core parts of that maintenance.
Once warning signs like chalking or cracking start to appear, it's worth considering an early repaint rather than waiting.
Before scheduling the work, it also helps to check how much it's likely to cost and whether there are ways to bring that cost down — details that will come in handy the moment you're ready to move forward.
